A178734 a(n) = n XOR 8n, where XOR is bitwise XOR.

0, 9, 18, 27, 36, 45, 54, 63, 72, 65, 90, 83, 108, 101, 126, 119, 144, 153, 130, 139, 180, 189, 166, 175, 216, 209, 202, 195, 252, 245, 238, 231, 288, 297, 306, 315, 260, 269, 278, 287, 360, 353, 378, 371, 332, 325, 350, 343, 432, 441, 418, 427, 404, 413, 390

Offset: 0

Author

Dmitry Kamenetsky, Jun 08 2010

Keywords

• nonn

Crossrefs

Cf. A048724, A178729, A048725, A178731, A178732, A178733, A178735, A178736. - Robert G. Wilson v, Jun 09 2010

Programs

Mathematica

f[n_] := BitXor[n, 8 n]; Array[f, 60, 0] (* Robert G. Wilson v, Jun 09 2010 *)

Python

def A178734(n): return n^ n<<3 # Chai Wah Wu, Jun 29 2022

Extensions

a(30) onwards from Robert G. Wilson v, Jun 09 2010